login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A378875 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
111
120
131
140
150
160
170
180
191
200
210
220
231
240
250
260
271
281
290
301
310
320
330
342
350
360
371
381
390
402
410
420
432
440
450
461
471
481
490
501
510
520
530
541
550
562
570
580
590
600
610
620
631
640
651
661
670
680
691
700
711
720
731
741
750
761
771
780
790
802
811
820
831
840
853
860
870

[0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0,0,1,0,
 0,0,1,1,0,1,0,0,0,2,0,0,1,1,0,2,0,0,2,0,0,1,1,1,0,
 1,0,0,0,1,0,2,0,0,0,0,0,0,1,0,1,1,0,0,1,0,1,0,1,1,
 0,1,1,0,0,2,1,0,1,0,3,0,0]